Abstract #3261

4D Radial-Sliding Window MR Angiograpy of Intracranial Arteriovenous Malformations: Correlation with Digital Subtraction Angiography

Christopher Sean Eddleman¹, Hyun Jeong², Michael C. Hurley², Christopher C. Getch, Guilherme Dabus², Bernard R. Bendok², Hunt H. Batjer, Timothy J. Carroll²

¹Neurological Surgery, Northwestern University, Chicago, IL, USA; ²Radiology, Northwestern University

While digital subtraction angiography (DSA) of intracranial arteriovenous malformations (iAVMs) allow the capturing of very high temporal resolution hemodynamic images, time-resolved MR angiography is catching up. Using a radial sliding window and mask subtractions, this time-resolved MRA sequence captures iAVMs at 6 frames/sec and at sub-millimeter spatial resolution, approximating DSA. Here we demonstrate the comparison of 4D RS-MRA and DSA images of iAVMs.